Refilling the HP 351, 351XL, 342, 343 or 344 ink cartridge at home is very easy and can offer you great results, with very little equipment. All you need is at least one syringe, plus some universal . Simply remove the label, widen the fill holes (if necessary) and fill the relevant chambers of the HP 351, 351XL, 342, 343 or 344 ink cartridge with the amount of ink mentioned below.
For these cartridges, we recommend injecting the following amount of ink into each of the chambers (cyan/magenta/yellow):
HP 351/CB337EE: 3ml (9ml Total)
HP 351XL/CB338EE: 5ml (15ml Total)
HP 342/C9361EE: 3ml (9ml Total)
HP 343/C8766EE: 3ml (9ml Total)
HP 344/C9363EE: 6ml (18ml Total)
We recommend sticking to the lower fill for the HP 351, HP 342 & HP 343 as these cartridges have a smaller sponge and are physically restricted inside the cartridge. As such, over filling them can result in ink spilling inside your printer.
This guide is intended purely to show where to inject the ink into these cartridges and how much we recommend using. For full refill instructions for these cartridges, please click here.
HP 351, 342 and 343 Refill Video Guide
HP 351XL and HP 344 Refill Video Guide
Compatibility
These cartridges are compatible with a variety of printers including the HP DeskJet 460c, 460cb, 460wbt, 460wf, 5740, 5743, 5745, 5748, 5940, 5943, 6520, 6540, 6543, 6620, 6623, 6840, 6843, 6940, 6940dt, 6980, 6980dt, 6983, 6988, 9800, 9800d, D4145, D4160, D4163, D4168, D4200, D4260, D4263, D4360, HP OfficeJet 6200, 6205, 6210, 6213, 7130xi, 7210, 7213, 7310, 7313, 7410, 7413, H470, H470b, H470wbt, J5730, J5780, J6410, J6413, J6415, J6450, J6480, Pro K7100, Pro K7103, Pro K7108, HP Photosmart 2570, 2573, 2575, 2575a, 2575v, 2575xi, 2605, 2608, 2610, 2610v, 2610xi, 2613, 2615, 2710, 2713, 325, 329, 335, 337, 370, 375, 385, 420, 422, 425, 428, 475, 8049, 8050, 8050xi, 8150, 8150v, 8450, 8450gp, 8450xi, 8453, 8750, 8753, C4205, C4210, C4240, C4250, C4270, C4272, C4275, C4280, C4283, C4285, C4340, C4343, C4345, C4348, C4380, C4385, C4400, C4440, C4450, C4472, C4480, C4483, C4485, C4500, C4580, C4583, C4585, C4599, C5200, C5240, C5250, C5280, C5283, C5288, C5580, D5145, D5160, D5163, D5168, D5360, D5363, D5368, Pro B8330, Pro B8338, Pro B8350, Pro B8353, HP PSC 1600, 1610, 1610v, 1610xi, 1613, 2210v, 2305, 2310, 2320, 2350, 2353, 2355, 2355p, 2355v and 2510.
